Suppose the ends of the rail are rigidly clamped at 0°C to prevent expansion.
Calculate the thermal stress in the rail if
its temperature is raised to 34°C. Young's
modulus for steel is 20 1010 N/m².
Answer in units of N/m².

Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you can’t balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.

When using the scientist method, which step comes last?

A4.0-cm tall light bulb is placed a distance of 32.0 cm from a concave mirror having a focal length of 16.0 cm. determine the image distance